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315147437012 = 221572054924421
BaseRepresentation
bin1001001011000000100…
…00000100001111010100
31010010110011111112222202
410211200100010033110
520130410220441022
6400435435144032
731524435005312
oct4454020041724
91103404445882
10315147437012
1111172056a991
12510b22a5018
132394508a0a5
1411378b850b2
1582e73e8592
hex49604043d4

315147437012 has 24 divisors (see below), whose sum is σ = 555070542600. Its totient is φ = 156556033920.

The previous prime is 315147436991. The next prime is 315147437107. The reversal of 315147437012 is 210734741513.

It can be written as a sum of positive squares in 4 ways, for example, as 15110801476 + 300036635536 = 122926^2 + 547756^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12892562 + ... + 12916982.

It is an arithmetic number, because the mean of its divisors is an integer number (23127939275).

Almost surely, 2315147437012 is an apocalyptic number.

It is an amenable number.

315147437012 is a deficient number, since it is larger than the sum of its proper divisors (239923105588).

315147437012 is a wasteful number, since it uses less digits than its factorization.

315147437012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45131 (or 45129 counting only the distinct ones).

The product of its (nonzero) digits is 70560, while the sum is 38.

The spelling of 315147437012 in words is "three hundred fifteen billion, one hundred forty-seven million, four hundred thirty-seven thousand, twelve".

Divisors: 1 2 4 157 314 628 20549 24421 41098 48842 82196 97684 3226193 3834097 6452386 7668194 12904772 15336388 501827129 1003654258 2007308516 78786859253 157573718506 315147437012